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EN 1.4958 Stainless Steel vs. ASTM A387 Grade 11 Steel

Both EN 1.4958 stainless steel and ASTM A387 grade 11 steel are iron alloys. They have 48% of their average alloy composition in common. There are 31 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is EN 1.4958 stainless steel and the bottom bar is ASTM A387 grade 11 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
190
Elongation at Break, % 40
25
Fatigue Strength, MPa 170
200 to 250
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
73
Shear Strength, MPa 430
320 to 390
Tensile Strength: Ultimate (UTS), MPa 630
500 to 600
Tensile Strength: Yield (Proof), MPa 190
270 to 350

Thermal Properties

Latent Heat of Fusion, J/g 300
260
Maximum Temperature: Mechanical, °C 1090
430
Melting Completion (Liquidus), °C 1400
1460
Melting Onset (Solidus), °C 1350
1420
Specific Heat Capacity, J/kg-K 480
470
Thermal Conductivity, W/m-K 12
39
Thermal Expansion, µm/m-K 15
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 30
2.9
Density, g/cm3 8.0
7.8
Embodied Carbon, kg CO2/kg material 5.3
1.6
Embodied Energy, MJ/kg 75
21
Embodied Water, L/kg 200
53

Common Calculations

PREN (Pitting Resistance) 21
3.1
Resilience: Ultimate (Unit Rupture Work), MJ/m3 190
100 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 95
200 to 320
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
24
Strength to Weight: Axial, points 22
18 to 21
Strength to Weight: Bending, points 20
18 to 20
Thermal Diffusivity, mm2/s 3.2
11
Thermal Shock Resistance, points 15
15 to 18

Alloy Composition

Aluminum (Al), % 0.2 to 0.5
0
Carbon (C), % 0.030 to 0.080
0.050 to 0.17
Chromium (Cr), % 19 to 22
1.0 to 1.5
Cobalt (Co), % 0 to 0.5
0
Copper (Cu), % 0 to 0.5
0
Iron (Fe), % 41.1 to 50.6
96.2 to 97.6
Manganese (Mn), % 0 to 1.5
0.4 to 0.65
Molybdenum (Mo), % 0
0.45 to 0.65
Nickel (Ni), % 30 to 32.5
0
Niobium (Nb), % 0 to 0.1
0
Nitrogen (N), % 0 to 0.030
0
Phosphorus (P), % 0 to 0.015
0 to 0.025
Silicon (Si), % 0 to 0.7
0.5 to 0.8
Sulfur (S), % 0 to 0.010
0 to 0.025
Titanium (Ti), % 0.2 to 0.5
0